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The o2 sensors just read the ratio of oxygen to fuel in a given sample. So the computer adjusts fueling through stft so the sample of exhaust reaches 14:1 in closed loop. The mtf predicts the what flow of air through the maf will ultimately translate to that ratio after combustion. Once it knows the fuel needed for that ratio, that the base fuel table can be used to determine the fuel added to reach the lamba desired in the base fuel table. Forcing open loop and changing the bft across the board will prove this theory if the mtf is accurate.
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Vortech V2 S-trim, E85, A2A Treadstone, Comp cams, built engine, full exhaust, built rear, built 4r70, more mods.
Tuned by me with SCT Advantage
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